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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-01-16 16:42:54 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-01-24 17:22:45 +0100 |
| commit | 7f1bdbcb325b5cdae8c440980dabb5ed081012d5 (patch) | |
| tree | 4436f1db19b5daf256021369dc51ece58080b514 /drivers/gpu/drm/i915/i915_ums.c | |
| parent | drm/i915: clean up HPD IRQ debug printing (diff) | |
| download | linux-dev-7f1bdbcb325b5cdae8c440980dabb5ed081012d5.tar.xz linux-dev-7f1bdbcb325b5cdae8c440980dabb5ed081012d5.zip | |
drm/i915: Only restore backlight combination mode reg for ums
This was forgotten in
commit 565ee3897f0cb1e9b09905747b3784e6605767e8
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Nov 13 12:56:29 2013 +0200
drm/i915: do not save/restore backlight registers in KMS
Since the confusion was likely due to the duplicated definition for
this pci config register, let's unify that, too.
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_ums.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_ums.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_ums.c b/drivers/gpu/drm/i915/i915_ums.c index caa18e855815..480da593e6c0 100644 --- a/drivers/gpu/drm/i915/i915_ums.c +++ b/drivers/gpu/drm/i915/i915_ums.c @@ -271,6 +271,10 @@ void i915_save_display_reg(struct drm_device *dev) /* FIXME: regfile.save TV & SDVO state */ /* Backlight */ + if (INTEL_INFO(dev)->gen <= 4) + pci_read_config_byte(dev->pdev, PCI_LBPC, + &dev_priv->regfile.saveLBB); + if (HAS_PCH_SPLIT(dev)) { dev_priv->regfile.saveBLC_PWM_CTL = I915_READ(BLC_PWM_PCH_CTL1); dev_priv->regfile.saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_PCH_CTL2); @@ -293,6 +297,10 @@ void i915_restore_display_reg(struct drm_device *dev) int i; /* Backlight */ + if (INTEL_INFO(dev)->gen <= 4) + pci_write_config_byte(dev->pdev, PCI_LBPC, + dev_priv->regfile.saveLBB); + if (HAS_PCH_SPLIT(dev)) { I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->regfile.saveBLC_PWM_CTL); I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->regfile.saveBLC_PWM_CTL2); |